Home / 15,418.20-23,151.60-8,857.20

Finding the Fourth Proportional to 15,418.20, 23,151.60 and 8,857.20

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Solution

The fourth proportional to 15,418.20, 23,151.60 and 8,857.20 is: 13,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.20 : 23,151.60 = 8,857.20 : x
  2. Step 2: Convert to fraction form
    15,418.20/23,151.60 = 8,857.20/x
  3. Step 3: Cross multiply
    15,418.20x = 23,151.60 × 8,857.20
  4. Step 4: Simplify right side
    15,418.20x = 205,058,351.52
  5. Step 5: Solve for x
    x = 205,058,351.52/15,418.20
  6. Step 6: Final answer
    x = 13,299.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.